Sion weather in December (Canton of Valais, Switzerland)

What kind of weather does December bring to Sion? See what weather conditions to anticipate this month with our guide.

Temperatures

The month of December in Sion typically brings very low temperatures and high snowfall. December is part of winter. Expect temperatures to climb to -3°C during the day, with nighttime readings dropping to -12°C. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.

Precipitation

Sion in December usually receives high snowfall, averaging around 139 mm for the month. Snow is expected on roughly 14 days.

Average sunshine

This month is characterized by fewer sunny days, with about 70 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Sion. July and August typically offer the most optimal weather. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Sion climate page with graphs.

 

Sion, monthly averages in December

Min Temperature -12°C  

Max Temperature -3°C  

Chance of Rain 48%  

Precipitation 139 mm  

Rainy days 14 days  

Humidity 83%  

Windspeed 4 km/h  

Sunshine 70 hours  

Percentage Sunshine 50%  

Where to go in Switzerland in December

Find out more about the weather in Switzerland and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Visitors traveling to Sion should plan on bringing winter clothes, snow boots and a warm winter coat. There will be periods of snow.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

1/10

Cycling

1/10

Walking

1/10

Camping

1/10

Outdoor sports

1/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Sion.

Our site offers climate and forecast data for every country in the world. Are you going to Switzerland? On this website you can find historical weather averages for many cities in Switzerland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.